My brother lives in Kenai, and although his days are very short for several months, it’s much worse, the perpetual twilight in Northern Alaska (as relayed to be). Remember Alaska is huge, like Texas+California.
Of course not. Anywhere that is as far North as Alaska will experience the same. Take a look at a globe. The points furthest from the equator will receive less light.
Parts of Russia and some of the Scandinavian countries will be the same.
Any place above the arctic, or below the antartic circle.
Here's what google stated when ask for notable cities above the artic
Notable cities above the Arctic Circle include Murmansk, Russia (the largest city in the world above the circle), Tromsø, Norway (a major Arctic hub known for the Northern Lights), Rovaniemi, Finland (famous as the "home" of Santa Claus), and Kiruna, Sweden (a significant mining town). Other prominent cities include Iqaluit, Canada, and Longyearbyen, Norway